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<head>
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    <title>Document</title>
    <script src="../../react18/react.development.js"></script>
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<body>
    <button id="btn">渲染</button>
    <div id="app"></div>
    <script type="text/babel">
        const vDom = (
            <div>
                <h1>diffing算法</h1>
                <p>日冕</p>
            </div>
        )
        const root = ReactDOM.createRoot(document.getElementById('app'))
        root.render(vDom)
        const oBtn=document.getElementById('btn')
        oBtn.onclick = function () {
            const vDom = (
                <div>
                    <h1>diffing算法</h1>
                    <p>月光</p>
                </div>
            )
            root.render(vDom)
        }


       
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